Question

An inverted U tube has its two limbs in water and kerosene contained in two beakers. If water rises to a height of 10cm to what height does the kerosene rise in the other limb

Answer 1

Given: h1 = 10 cm, h2 = x cm, rho1 = 1 g/cm^3, rho2 = 0.81 g/cm^3

By using the formula,
=> h1*rho1 = h2*rho2
=> 10*1 = x*0.81
=> 10 = 0.81x
=> x = 10/0.81
=> x = 12.5 cm. (ans)


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